A phononic crystal suspension for vibration isolation of acoustic loads in underwater gliders

Yang, Shaoqiong; Chang, Hao; Wang, Yanhui; Yang, Ming; Sun, Tongshuai

doi:10.1016/j.apacoust.2023.109731

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…However, this has received much less attention, since most discussions on TPDWSs introduce a small perturbation in spring stiffness to open the bandgap in order to preserve the chiral symmetry to some extent. Nonetheless, a large bandgap is usually desirable in many applications requiring vibration mitigation within a certain frequency range [34][35][36][37]. Hence, it is important to identify the conditions for the survivability of the in-gap states.…”

Section: Introductionmentioning

confidence: 99%

In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices

Rajabpoor Alisepahi,

2024

Crystals

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Topological states of matter have attracted significant attention due to their intrinsic wave-guiding and localization capabilities robust against disorders and defects in electronic, photonic, and phononic systems. Despite the above topological features that phononic crystals share with their electronic and photonic counterparts, finite-frequency topological states in phononic crystals may not always survive. In this work, we discuss the survivability of topological states in Su–Schrieffer–Heeger models with both local and non-local interactions and larger symmetry perturbation. Although such a discussion is still about ideal mass-spring models, the insights from this study set the expectations for continuum phononic crystals, which can further instruct the application of phononic crystals for practical purposes.

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Section: Introductionmentioning

confidence: 99%

In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices

Rajabpoor Alisepahi,

2024

Crystals

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“…This makes them a promising solution for vibration and noise reduction. In recent years, scientists have applied phononic crystals in the fields of marine hydroacoustic detection [4], automobiles [5], and architecture. These crystals have shown potential for various applications due to their unique properties.…”

Section: Introductionmentioning

confidence: 99%

Low-Frequency Bandgap Characterization of a Locally Resonant Pentagonal Phononic Crystal Beam Structure

Zhang,

Qian,

Zhang

et al. 2024

Materials

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This paper proposes a local resonance-type pentagonal phononic crystal beam structure for practical engineering applications to achieve better vibration and noise reduction. The energy band, transmission curve, and displacement field corresponding to the vibration modes of the structure are calculated based on the finite element method and Bloch-Floquet theorem. Furthermore, an analysis is conducted to understand the mechanism behind the generation of bandgaps. The numerical analysis indicates that the pentagonal unit oscillator creates a low-frequency bandgap between 60–70 Hz and 107–130 Hz. Additionally, the pentagonal phononic crystal double-layer beam structure exhibits excellent vibration damping, whereas the single-layer beam has poor vibration damping. The article comparatively analyzes the effects of different parameters on the bandgap range and transmission loss of a pentagonal phononic crystal beam. For instance, increasing the thickness of the lead layer leads to an increase in the width of the bandgap. Similarly, increasing the thickness of the rubber layer, intermediate plate, and total thickness of the phononic crystals results in a bandgap at lower frequencies. By adjusting the parameters, the beam can be optimized for practical engineering purposes.

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An improved histogram algorithm for DOA estimation based on single vector acoustic system

Wang,

Lv,

Zhang

et al. 2025

Applied Acoustics

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A phononic crystal suspension for vibration isolation of acoustic loads in underwater gliders

Cited by 5 publications

References 40 publications

In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices

In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices

Low-Frequency Bandgap Characterization of a Locally Resonant Pentagonal Phononic Crystal Beam Structure

An improved histogram algorithm for DOA estimation based on single vector acoustic system

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